Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E2CC/I2S0/DMAACT#0x0
DMA Startup Register
This bit is enabled when the same register RL1E0=0
This sets the operation mode of RXDREQ
This bit is enabled when the same register TL1E0=0
This sets the operation mode of TXDREQ
https://github.com/cmsis-svd/cmsis-svd-data